Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards; rated insulation level 40.5/95/185kV, rated frequency 50/60Hz, rated secondary current 5A or 1A. Optional primary current covers 20–3150A with the same accuracy grades and rated power values as the series; short-time thermal current ranges 4–31.5kA, rated dynamic stable current ranges 10–130kA; product weight:78kg; ambient operating temperature -5℃~+40℃.
Indoor epoxy cast CT for 35kV systems; suitable for metering and protection in MV switchgear.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LZZBJ9-35-G | Marquage de la plaque constructeur |
| Tension primaire | 10kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | 5A/1A | Vérification du rapport à la fréquence nominale |
| Classe de précision | [On Request] | Essai de précision (IEC 61869-2 / IEEE C57.13) |
| Charge nominale | [On Request] | Essai de charge à la puissance VA nominale |
| Type d'isolement | Dry Epoxy Resin | Essais diélectriques selon la norme |
| Niveau d'isolement (BIL) | 12/42/75kV | Tenue à fréquence industrielle et au choc de foudre |
| Normes | [On Request] | Certifié selon les normes listées |
| Fréquence | 50/60Hz | Selon IEC 61869-1 |
| Environnement | Ambient: -5℃~+40℃ | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
secondary terminals 1S1/1S2 (protection winding 2S1-2S2). Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary winding at one point. Follow IEC 61869-2 terminal markings.
Conforme à : [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q : What is the insulation level?
R : The insulation level is 12/42/75kV, meaning 12kV system voltage, 42kV power-frequency withstand, 75kV lightning impulse.
Q : Can it be used outdoors?
R : No, it is designed for indoor use only.
Q : What secondary currents are available?
R : Secondary current is 5A or 1A.
Les champs manquants sont marqués [On Request] — jamais inventés. Les lignes de vérification M2/M5/M6 suivent les conventions IEC 61869 / IEEE C57.13.
| Rated primary current I1n (A) | Accuracy classCombined | Accuracy class & rated output (VA) COSΦ=0.8 | Accuracy class & rated output (VA) COSΦ=0.8 | Accuracy class & rated output (VA) COSΦ=0.8 | Accuracy class & rated output (VA) COSΦ=0.8 | Accuracy class & rated output (VA) COSΦ=0.8 | Accuracy class & rated output (VA) COSΦ=0.8 | Short-time thermal current Ith (kA/S) | Short-time thermal current Ith (kA/S) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 4 | 1 | 10 | 78 |
| 30-40 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 4 | 2 | 10 | 78 |
| 50 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 12 | 1 | 30 | 78 |
| 75 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 16 | 1 | 40 | 78 |
| 100-150 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 25 | 1 | 63 | 78 |
| 200-300 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 31.5 | 1 | 80 | 78 |
| 400-600 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 31.5 | 2 | 80 | 78 |
| 800-1600 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | 31.5 | 4 | 130 | 78 |
| 2000-3150 | 0.2(S)/0.5(S) | 0.2(S)/0.5S | 0.2(S)/5P | 0.2(S)/0.5(S)/5P | 0.2(S)/5P/5P | 0.5(S)/5P/5P | 10 | [On Request] | [On Request] | [On Request] | 78 |
Dessin d'encombrement et de dimensions du LZZBJ9-35-G — cliquez sur l'image pour zoomer / afficher l'original.
